Paper bag.



11. G. 'WIDMER'.

PAPER BAG.

AIPLIOATIOHIILED 11114, 190a.

" Patented Nov. 17, 1908.

I WITNESSES: A

INVENTOR ,sisting of a tube havin HOWARD .G. WIDMER',.OF BROOKLYN, N EW YORK.

PAIPEB- BLGL'.

Nhl eoe iev; I

SpecifibafionotLttoB Patent.

Application filed. February 14, 1906. Serial NIL-800,992;

Patented .nov. 17,1908.

To all whom it may concem:

- Be it known that I, HOWARD Gr. WiDMER, a citizen of the United States, and a resident of the boron h of Brooklyn, in 'the county of .Kings an State of New.Y'ork, have invented certain new anduseful Im rovements in Paper Bags, of whichxth jo. w g" The invention also'seeks to accomplish.

the. result stated. with. reference to paper bags of the simpler construction,. and also by means which. may be of a character capable of being: formed on or applied to the pa er with convenience and at small cost..

eretofore the paper ba s, in most general use, are of the plain tuc ed variety, coninfolded sidetucks and a bottom formed y turning over one end and fpasting-itdown to one. ofthe sides of the bag. This turned over, portion forms a foldedbottom closure which extends trailsversely and substantially straight across the entire width of the bag. Of course, the corners of this fold might be. clipped ofi to facilitate pasting. and still the closure would have a P01171011 which extended the entire wldth o the bag. Thesepl'ain tucked bags are sold, .of course, in a flat or colla'sed. are or th 1s reason.

state These bags are inex ensive, an sold in large quantltle's owever, certa1n.ser1ous defects.

in-rush .of air, nor

the first entrance of the filllngmaterial.

care to avoid the formation ofhap-hazard folds .ats the-bottom corners, which. is very objectionable. Furthermore, thesebottoms,- the bottoms bein more or less rounded: This; is-another efect. a. The, de-

sirabilityof overcoming. these defects in a een-long.recognized,..and accord ingly, bags 5 of various constructions have. been-J proposed. withthis-=1 object invi-ew: These proposed bags, however, could only.

bag has state and i without necessitating, the

Y They therefore-require; to be openedout by inserting the hand and. presslngout the, tucks at the bottom.- This, of course, requires time and considerable be made at a very considerable increase in the cost of manufacture, and are objectionable for this reason. Again, inthe case of at least. one variety of 'these'proposed. bags,- the bag does nothave a flat bottom and does.

not open out with the requisite promptnew'= and reliability, v

In accordance with j the present invention, a bag. is provided in which the defects and. objections stated are entirelyovercome. The bags to which this invention applies are of this plain tucked-variety in which the 'unal tered tube or collapsed ba blank has its bottom. margin, folded over odily upon itself and secured to'a side face of the bag, usually by paste, and the tube isformed'of one piece of material, the folded margin or bottom closure therefor ex tendin across the entire width of 'the bag. In th1s specificatiomthe ex ression. havln infolded 'side tucks and a olded bottom 0 osure extending substa-n tially straight across the'entire width of the" bag defines the above described plain". tucked. bag to which this invention applies and the expression is intended to distinguish over-the bag known to the trade as the au-; tomatic bag 5" onv which diamondfolds are. made in the bags and a ready made flat bot-" tom is formed and laid over on. one side face of the bag, the bottom closure in this auto-F matic-bagbeing formed by a flap intl'ie mid-- dle. of this folded over, ready made bottom the bag. Said expression likewise. distinguishes over the bag. in which the plies of the tucks are infolded .near the botto nof the blank ,and then the bottom marginyfo'lde'dl over.upon .a side face of the bagto' form a1 closure and zlOCk the infolded plies in lace. In this-type of bag, also the bottom c osure.-

does not extend across the entire width of'.

the bag, In fact, the. expression used is intended exclusively todefine the cheap, plain ty e ofbag described.

gVith this invention expensive foldiuipf tuck plies and bagsides is not resorte ba v but simple means which" may be applied to. whenuopened outaonfilled, .do. not have di t: i

bag; material .alongthe localities .-where fieX-..

ure is required :in opening 'out the bag, and

1n ,openin it out so as to form aflfiat bot? tom... An these means for aiding;flexure may beqand '.preferably-= are of such aqcharracteijas .-to..be'negligible as regards increasing the cost as compared with those proposed heretofore for the same general purposes.

In the type of bag referred to'above as the plain tucked bag, the degth of the tucks 5 determines points on the-si e edges of the bag, and these points, in turn, naturally determine the approximate corners of the bag bottom when the bag is opened out.

smoothing the sides and the tucks. These points, therefore, determine the natural lines of flexure.

In carryin out the invention a corrugation is specia y formed in the collapsed bag through all its thicknesses and along its lines of flexure. Thus, each thickness will have its own corrugation consisting of two contiguous creases or an alternate ridge and de pression, the rid e of one face of a thickness constituting a epression on the opposite face of such thickness. It will, therefore,

5 be seen that each thickness will have at least one crease whose concavity will face in the proper direction and each crease will, in consequence, aid such thickness to flex in the proper direction notwithstanding the fact 0 that various thicknesses must flex in opposite directions in o ening. out the bag. Therefore in the pre erred form of the invention all the natural lines of flexure are provided with means for aiding flexure. It is to be 3 understood, however, that various methods of manufacture may render other disposition of the means for aiding flexure more desirable.

The preferred form of the invention is 40 illustrated in the drawings forming art of this specification, in which like re erence numerals designate corresponding parts or localities and in which :f

Figure 1 illustrates a collapsed bag in side elevation with portions of one side and of the tucks broken away. Fig. 2 is a similar view showing theopposite side from that shown in Fig. 1 and with the top portion of the bag removed. Fi 3 is an enlarged sectional elevation on t e line 33' of Fig. 1. -Fig. 4 is a sectional elevation of the'bag opened out until its bottom is approximately flat, and provided with corrugations. Fig. 5 is a side elevation of a collapsed bag with portions removed to show the creases on the tucks and Fig. 6 is a perspective view of a ba partially opened so that the creases along tie lines of flexure of the tucks are visible, 7

Referrin now more particularly to the drawings: ig. 6 illustrates a bag which has been artially collapsed 'after havi been opened out and naturally creased un t fi there are definitely defined creases alon the lines where the sides of the ba and the ottom intersect, that is, along the Tines of flexure 1 and It is 1 through these points that the sides of the bag 10 and thetucks tend to flex when the bag is opened .out byinserting'the hand and. by? slmultaneously pushing up the bottom and.

2 of the sides 3 and 4 respectively. In addition to these creases along the lines of flexure 1 and 2 there are two transverse creases 5 and 6 across the tucks which would lie direetly beneath the lines 1 and 2 if the bag werea ain fully collapsed. There are also two ob ique or diagonal creases 7 and 8 extending across the tucks, from the intersection. of lines '5 and 6 with the side edges 9 and 10 respectively, until they intersect the edge.

11 at the bottom of the collapsed bag. For

the bag to open out until its bottom is flat it is necessary that something form this bottom. In fact, the bottom is formed bythe portions of the sides 3 and 4 below the lines 1 and 2, so

which are folded together when the bag is collapsed and which must each be of an extent equal to the width of a tuck fold or the depth of the tucks. Thus .it is that the depth of the tucks determines the lines 1 and 2 and conse uently the points where they intersect the si e edges 9, 10, 11 and 12, which subsequently are the corners of the bag bottom.

It :-is obvious that these additional creases do not exist in and are not essential to the bag when collapsed. However, the bag, when collapsed, possesses several creases which are essential and are made durin the process of manufacture. Thus each in olded side tuck possesses three creases. Two of these are 9., where the tucks join the sides of the bag designated by the reference numerals 9 and 10, 11 and 12 and one where the tuck is folded on itself designated by 13 and 14. The sides of the bag themselves also possess one crease along the bottom edge 11. To distinguish the lines of flexure 1, 2, on the sides 3 and 4; the lines of flexure 5, 6, 7 and 8 on the folds l5 and 16; and the similar lines of flexure 5,

'6, Tand 8 on the tuck folds 17 and 18, but not .shown in Fig. 6; from the lines of flexure essential in the collapsed ba' they are ,termed lines of flexure which the ag has when it is opened out until its bottom is approximately flat, in addition to the lines of flexure alon the folds or creases essential in the collapse vis the bag is opened out until its bottom is approximately flat the pa er walls of the bag ,must bend in certain de 'te directions, that is, they form creases which have their several concavities on a definite face or faces of the wall or walls. For instance, theconcavities of the creases along lines of flexure 1 and 2 are on the inner. face of the sides 3 and 4 respectively, and ifthe ba were collapsed would come face to face. T e concavities of the creases alongv the lines of flexure 5 and 6 are likewise on the inside faces of the tuck folds, 15 and 16 respectively, but as the tuck is infolded when the bag is collapsed the convexities of these folds would come face to face instead of the concavities. The creases along the lines of flexure 7 and 8 have their coneavities on the outside faces of the tuck .15 o flexure sothat each crease "W111 have its M 8215tisliaauisjaoesaeagas fins-5' and 6 andwouldjayeutheir concavities face ex m before ;.the 'baiis ever opened and in a-mannee so that t I 1. as possible like the creases which would.

j bag wal 'tion the collapsed bag is passed through ies 20 and, 21', 22 along lines overlying the lines 7 of fl'exure 7 and 8 This creasing or fluting 'is best' illustrated in Fig. 4, 'wh' e Figs. 3

tucks and as afresult, a crease ap roximatelya ure "whic' necessarily befornied in the/bag by p v the bottom byu-han Owing to the varied podtioning 'ofpthes'e natural ,creases formedby opening-out the ba'g,it is diificult to form artificially at one" o eration,' a single crease alongleach .lin'e conc'avit .ling on 'the proper-facepf the v 11 order to overcome 'this'ob'e'c-- which formi'j'a plurality 'of Qcontlguous' creases or, in the preferred form; a com-; lete corrugatiom'comprisin a ridge and a epression, a proximately a nga the lines of flexure 1 an -2 of the sides, and obliquely across the corners of, the bag as shown at 19,

involves the severalthickne'sses of the materiaLfofthe collapsed. bag. and of theinfolded produces at least one ong each line of'fiex has 'its 'concavity lying on the then readily selects. the proper crease'r'on' which to flex and opens 'out automatically,

- without additional aid,-until itslbottomgis' alpprdxiniately fiat' and 'the tucksvvha-ve been transformed into approximately :flat walls; This automatic selectlon of the pro rf crease and-5 -'illustrate how the creases or .convo1u;

tion's' involve the entire thicknesses of the collapsed bag.

Itis understood that --the expression e y' will existas nearly-'- Yt neiaty be intermittntif desired, Fur thermoreany material'suitable may be -em-- fications, of details areconsidered. to within the S00 e of this invention as particularly :preferred..'- .v v .v

g -While.thepreferr'ed form and adaptation p of papei'g-although paper off-thief invention-has. been -,describ'ed and illustrated; various combinations. and modis etforth. 1n the following claims "1; In' paper bags, a bag comprising a, tube- 'formed of one piece of. materialand having infolded side tucks and a folded bottom clo- Substantiall'y strai ht across h of the bag said a being sure -ex'tendinf the entire; 9

provided,- along one or' more-lines of exure,=-

I with a. com ation which 1s especially.

formed ofone piece-of material an having ,formed'throng .all the thicknesses of the oollapsedbag. 1

2; In paper bags, a bag'comprisin' a-tube' -infolded side tucks and a folded bottom 010- su're' extendin substantially stra' ht acrossormed approximately at angles of 45 to the sideed s of the be across the bottom'cornets 0 the bag an extending through all the thicknesses. of the, collapsed bag. tn

3. In paper bags,1a bag comprising a formed of one piece of material and having infolded side tucks anda .folded bottomjclo ormedf approximately at angles 0 45? to thejside edges of the-bag across the bottom corners 'of the 'bag" and with a-"corru formed straight across the vcolla be parallel to the bottom closure, bot ofsai tioIrproper face ofthe bfa ,wall at that locality. sure exten'din substantially; strai ht across 3 7 he" ha when-force throughtheair until the entiregwi 7th of the bag; said ag being the sad en'inrush ofalr forces outthe tucks, rovided' -with" a corrugation s ecially,

In testimony whereo I have'signed my name to this specification,'-in the presence of p two subscribing witnesses.

alonga-line of flex'ur'e does not mean that r f y the plurallty of contiguous creases or cosru- Witnesses: v gati'ons'mjust continue throughout'jthe entire IDA G. Gn;Monn

extent of of flezrure, In some cases 'DisdLAIMEB;

*Lnormnn DAY.

"claims a'r'el in the follo'yving words, to wit:

' $04 ,167. y aid GQI wi m emokl n, KY; Paras BAG. Page qaa 1 her 17., 1908. ,Disclaimer fil'ed January 21, 1910, by the assignee, Q'ontincntalf v T Paper Bag Gompany. i I i i Euters this disclaimer of claim 1 and also of claim 2 ofsaidLettersl atelit yhich Inpaper bags-La bag comprising a tube zformed of one piece of material having: infolded side tucks" and] a folded bottolnclosure extending substantially,

bag and exfie'n :11 gm rough 1311' the-thicknesses of the:

'-'-;straight across the-entire w idtl'i o'fi-tlie vba'g; said bag "being-pt v l one or mor'e lines'of flexure,,witli a corrugationiv vhich i's especially for 8 ugh l ithicknesses of the collapsed bag. t I I I" Q 7 l I 2. In paper-bags, a big-comprising tube. formed of one piece of 'materiQlfII -u having infolded, side tucks and a foldedbottom'closure extending substantrial- 3, 1 'straight across-the entire wid tli "'othe" bag; said bag" g-p e i-z tibnspggially-fo'rmedi'apprggimalvely jib fltlglfi i 0f l5--to..the Sid 81 edges of,

"across'the' bottom somerset the .15 o flexure sothat each crease "W111 have its M 8215tisliaauisjaoesaeagas fins-5' and 6 andwouldjayeutheir concavities face ex m before ;.the 'baiis ever opened and in a-mannee so that t I 1. as possible like the creases which would.

j bag wal 'tion the collapsed bag is passed through ies 20 and, 21', 22 along lines overlying the lines 7 of fl'exure 7 and 8 This creasing or fluting 'is best' illustrated in Fig. 4, 'wh' e Figs. 3

tucks and as afresult, a crease ap roximatelya ure "whic' necessarily befornied in the/bag by p v the bottom byu-han Owing to the varied podtioning 'ofpthes'e natural ,creases formedby opening-out the ba'g,it is diificult to form artificially at one" o eration,' a single crease alongleach .lin'e conc'avit .ling on 'the proper-facepf the v 11 order to overcome 'this'ob'e'c-- which formi'j'a plurality 'of Qcontlguous' creases or, in the preferred form; a com-; lete corrugatiom'comprisin a ridge and a epression, a proximately a nga the lines of flexure 1 an -2 of the sides, and obliquely across the corners of, the bag as shown at 19,

involves the severalthickne'sses of the materiaLfofthe collapsed. bag. and of theinfolded produces at least one ong each line of'fiex has 'its 'concavity lying on the then readily selects. the proper crease'r'on' which to flex and opens 'out automatically,

- without additional aid,-until itslbottomgis' alpprdxiniately fiat' and 'the tucksvvha-ve been transformed into approximately :flat walls; This automatic selectlon of the pro rf crease and-5 -'illustrate how the creases or .convo1u;

tion's' involve the entire thicknesses of the collapsed bag.

Itis understood that --the expression e y' will existas nearly-'- Yt neiaty be intermittntif desired, Fur thermoreany material'suitable may be -em-- fications, of details areconsidered. to within the S00 e of this invention as particularly :preferred..'- .v v .v

g -While.thepreferr'ed form and adaptation p of papei'g-although paper off-thief invention-has. been -,describ'ed and illustrated; various combinations. and modis etforth. 1n the following claims "1; In' paper bags, a bag comprising a, tube- 'formed of one piece of. materialand having infolded side tucks and a folded bottom clo- Substantiall'y strai ht across h of the bag said a being sure -ex'tendinf the entire; 9

provided,- along one or' more-lines of exure,=-

I with a. com ation which 1s especially.

formed ofone piece-of material an having ,formed'throng .all the thicknesses of the oollapsedbag. 1

2; In paper bags, a bag'comprisin' a-tube' -infolded side tucks and a folded bottom 010- su're' extendin substantially stra' ht acrossormed approximately at angles of 45 to the sideed s of the be across the bottom'cornets 0 the bag an extending through all the thicknesses. of the, collapsed bag. tn

3. In paper bags,1a bag comprising a formed of one piece of material and having infolded side tucks anda .folded bottomjclo ormedf approximately at angles 0 45? to thejside edges of the-bag across the bottom corners 'of the 'bag" and with a-"corru formed straight across the vcolla be parallel to the bottom closure, bot ofsai tioIrproper face ofthe bfa ,wall at that locality. sure exten'din substantially; strai ht across 3 7 he" ha when-force throughtheair until the entiregwi 7th of the bag; said ag being the sad en'inrush ofalr forces outthe tucks, rovided' -with" a corrugation s ecially,

In testimony whereo I have'signed my name to this specification,'-in the presence of p two subscribing witnesses.

alonga-line of flex'ur'e does not mean that r f y the plurallty of contiguous creases or cosru- Witnesses: v gati'ons'mjust continue throughout'jthe entire IDA G. Gn;Monn

extent of of flezrure, In some cases 'DisdLAIMEB;

*Lnormnn DAY.

"claims a'r'el in the follo'yving words, to wit:

' $04 ,167. y aid GQI wi m emokl n, KY; Paras BAG. Page qaa 1 her 17., 1908. ,Disclaimer fil'ed January 21, 1910, by the assignee, Q'ontincntalf v T Paper Bag Gompany. i I i i Euters this disclaimer of claim 1 and also of claim 2 ofsaidLettersl atelit yhich Inpaper bags-La bag comprising a tube zformed of one piece of material having: infolded side tucks" and] a folded bottolnclosure extending substantially,

bag and exfie'n :11 gm rough 1311' the-thicknesses of the:

'-'-;straight across the-entire w idtl'i o'fi-tlie vba'g; said bag "being-pt v l one or mor'e lines'of flexure,,witli a corrugationiv vhich i's especially for 8 ugh l ithicknesses of the collapsed bag. t I I I" Q 7 l I 2. In paper-bags, a big-comprising tube. formed of one piece of 'materiQlfII -u having infolded, side tucks and a foldedbottom'closure extending substantrial- 3, 1 'straight across-the entire wid tli "'othe" bag; said bag" g-p e i-z tibnspggially-fo'rmedi'apprggimalvely jib fltlglfi i 0f l5--to..the Sid 81 edges of,

"across'the' bottom somerset the Disclaimer in Letters Patent No. 904,167.

DISGLAIMEB- 904,167.Howarcl G. Widmer, Brooklyn, N. Y. PAPER BAG. Patent dated November 17, 1908. ,Disclaimer filed January 21, 1910, by the assignee, Continental Paper Bag Company. l Entersthis disclaimer of claim 1 and also of claim 2 of said Letters Patent, which claims are in the following words, to wit:

In paper bags,,& bag comprising a tube formed of one piece of matel isl and having infolded side tucks and afolded bottom closure extending substantially straight across the entire width of-the bag; said bag being provided, along one or' more lines of flexure, ,with a corrugationjwhich is especially formed through all the thicknesses of the collapsed bag.

' 2. In paper-bags, s. big-comprising a tube formed of one piece of material and having infolded side tucks 'and a. foldedbottom closure extending substantially ght across'the entire width of the bag; said bag being provided with aeovrugation specially formed approximately at angles of 45 to the side edges of the bag wrosstl 'e bottom corners of the bag an 1 extending through all the thicknesses of the oollspsed ba "[Oficial Gazette, February ,1, 1910.] 

